WIFI calling won’t turn on

Hello brayan06,

Thanks for using the Apple Support Communities!

I see from your post that you're having trouble turning on Wi-Fi Calling on your iPhone.

Check out this section of the article, Make a call with Wi-Fi Calling:

"Get help"

If you can't turn on or use Wi-Fi Calling, make sure that your carrier offers Wi-Fi Calling and that your devices have the latest software. Then, follow these steps if you can't turn on Wi-Fi Calling or make a Wi-Fi call. Wait two minutes before you go from one step to the next.

1. Go to Settings > Phone > Wi-Fi Calling and make sure that Wi-Fi Calling is on.
2. Restart your iPhone.
3. Connect to a different Wi-Fi network. Not all Wi-Fi networks work with Wi-Fi Calling.
4. Turn Wi-Fi Calling off and then on again.
5. Go to Settings > General > Reset and tap Reset Network Settings.

FaceTime isn't available in all countries or regions.

I hope this information helps you!

Cheers!